Carton



. n 1939- A. s. T. LAGAA-RD 2,162,556

CARTON Filed Dec. 29, 1937 2 Sheets-Sheet l Alexander ST l agaamd June 13, 1939. A. s. T. LAGAARD CARTON 2 Sheets-Sheet 2 Filed DeC.

.3 MW Alexander SIT. .La

Patented June 13, 1939 PATENT OFFICE CARTON Alexander S. T. Lagaard, Minneapolis, Minn., assignor to Waldorf Paper Products Company,

St. Paul, Minn., a corporation pf Minnesota Application December 29, 1937, Serial No. 182,277

Claims.

My invention relates to cartons and particularly to re-closing cartons of the 'type in which an end wall of the same is constructed by means of end wall sections issuing from the front, rear and side walls of the carton and secured together in overlying position.

' An object of the invention resides in constructing the carton in a manner to form a reclosing flap on one of the end wall sections adapted to be readily applied to the end wall to close an access opening formed therein.

Another object of the invention resides in constructing theend wall with a pocket adapted to receive a tab formed on the reclosing flap and in further providing ledges on certain of the end wall sections adapted to engage the tab and to readily direct the same into the pocket.

Other objects of the invention reside in the novel combination and arrangement of parts and in the details of construction hereinafter illustrated and/or described.

In the drawings:

Fig. 1 is a perspective view of a closed carton illustrating an embodiment of my invention.

Fig. 2 is a developed viewof a blank from which the carton, shown in Fig. 1, is constructed.

Fig. 3 is a perspectiveview of the uppermost portion of the carton with the innermost flaps 6-45 ofaFig. 5 anddrawn to a larger scale.

Fig. .7 is a sectional detail yiewtaken on line 1-1 of Fig. 5 and drawn to a larger scale.

In reclosing cartons in which a flap is inserted into a pocket in the end wall of which the flap forms a portion, considerable difliculty has been encountered with cartons heretofore used in directing the flap or the tab connected therewith into the pocket. The present invention overcomes this difficulty by providing on certain of the end wall sections forming part of the pocket, ledges which are adapted to engage the tab or flap and direct the same into the pocket.

In the drawings I have illustrated carton In which is constructed from a blank l2 of cardboard or some other similar material best shown in Fig. 2. This blank is formed with two longitudinal scores I3 and I4 which extend throughout the length of the blank. The blank is fur- 55 ther formed with a number of transverse scores Fig. 6 is a sectional detail view, taken on line IS, I6, I! and I8, which together with the scores l3 and I4, form in the blank. a front wall 2|, a rear wall 22, and two side walls 23 and 24 which constitute the lateral walls of the carton. The marginal portions of the blank I2, outwardly of 5 scores I3 and I 4, are slit along lines 25 and 26 which divide the portions of the carton outwardly of said scores into upper end wall sections 21, 28, 29, and 3|] and lower end wall sections 3|, 32, 33 and 34. In addition, a flap 35 is formed on the front wall 2| which is attached to the side wall forming a tubular structure adapted to be collapsed or extended.

The end wall section 29 is weakened along two diagonal lines 36 and 3'! which extend from the intersections of the scores l3, l1 and I8 and converge toward one another. These lines are formed by shearing the blank l2 at the localities indicated at 38 and perforating the blank along the localities indicated at 39. The lines of weakening 36 and 31 are intersected by other lines of weakening 4| which extend parallel to the scores I1 and I8 and terminate at the outermarginal edge 42 of the end section 29. By means of this construction, a flap 43 is formed which serves as a cover flap for the access opening formed in. the upper end of the carton and which will pres ently be described in detail. This construction further provides a tongue or tab 44 which issues outwardly from the flap 43. It will readily become apparent that, by tearing the tongue 44 along the lines of weakening 4| and the flap 43 alongthe lines of weakening 39, the flap 43 may be completely freed from the end Wall section 29 from which the same is formed. 35

In the end wall section 21 is formed a rectangular notch or opening 45,,which serves as an access opening to the interior of the carton. This access opening is formed with edges 46 and 41 which extend transversely of the score l3 and with an edge 48 which extends transversely of the edges 46 and 41. This latter edge forms in the end wall section 21 a marginal portion 49 adjoining the score 13.

The side wall sections 28 and 30 are similarly constructed and the ends 5| of thesame when the end wall sections are in folded position extend substantially in the same direction as the edges 46 and 41 of the end wall section 21 formed by the access opening 45. The lengths of the end wall sections 2B and 30 is such that, when the structure is folded, ledges 52 and 53 are formed at the ends of the same which project inwardly into the access opening 45. The marginal portions 54 of these end wall sections lie in continuation of the ledges 52 and 53. v

To prevent the adherence of certainparts of the carton to the others in the assembly of the same, certain areas of the various end wall sections are coated with printers ink of a nature such that the adhesive used will not adhere thereto. On the end wall section 21, as shown in Fig. 4, an elongated area 55 is provided which is disposed adjacent the score 13 and which prevents attachment of the extreme end of the tab 44 to the end wall section 29. Similarly areas 55 and 51 are provided on the same end wall section which prevent attachment of the fiap' 43 to the 'end wall section 21. On the end wall sections 28and 30 are provided similar areas 53 and 5 9 which prevent attachment of the end wall'section 21 to the same.

The method of forming, fillingand closing the carton is as follows. The two end wall sections 28 and 30 are first folded inwardly, as shown in .Fig. 3. The two end wall sections 21 and 29 are then folded outwardly, as shown in the same fig-.

ure. The entire structure is then run through the overhead gluer and the exposed surfaces to the two end wall sections 21 and 29 coated with glue or some other suitable adhesive. The end wall section 21 is next folded over upon the end wall sections 28and 30 and caused to adhere thereto. Due to the printed areas 58 and 59 the marginal portions 54 of the end wall sections 28 and 30 do not adhere to the marginal portion 43 of the end wall section 21. This forms a pocket wall section 28, and partly between the end wall section 21 and end wall section 30. The end wall section 29 is next folded upon the end wall section 21 and caused to adhere thereto throughout the areas of the same not provided with printing. The upper end of the carton is then completed. Thereafter the carton is inverted and filled with the substance to be contained therein, which may be inserted in a bag or placed directly in the carton through the lower end of the same. The end wall sections 3|, 32, 33 and 34 are finally folded over and glued to form the lower end wall of the carton. The carton is now completed and ready for use.

In the use of my invention the following is the procedure. The carton, when received, is as illustrated in Fig. 1 with the end wall section 29 outermost. When access is to behad to the interior of the carton, the tab 44 is engaged and pulled free from the marginal portion 43 of end wall section 21. Due to the printed area 55 the extreme end of this tab is free from the carton and may be readily grasped. Due to the areas 56 and 51 the flap 43 is completely free from the carton and upon pulling of the tab 44 away from the carton, the flap 43 is removed from the end wall section 29 from which it was constructed by tearing the same along the lines of weakening 4| and 36. Access opening 45 is now accessible and if the goods come in a bag, the bag can be broken to allow the contents thereof to be poured out through the said access opening. It will be noted in Fig. 4 that the ledges 52 and 53, formed on the end walls, sections 28 and 33 project inwardly into the opening 45 where the same are exposed. The distance between the edges 46 and 41 of the opening 45 is substantially equal to the distance between lines of weakening 4| so that the tab 44 may be received between the same. In reclosing the carton the tab 44 is brought down until the same engages the ledges 52 and 53. This is facilitated by means of a score 52, between the tab 44 and flap 43. The flap is then run along these ledges and pressure applied in a downward direction. This opens up the pocket 6| formed between the marginal portions 54 and 49 and permits of easily inserting the tab 44 into the same. After the tab has been reinserted, the cartonbecomes closed, as shown in Fig. 5.

To facilitate removal of the contents of the carton, certain of the walls of the carton are formed so that the same will bend giving the rear wall 22 and flap 43 a V-shaped formation serving as a spout along which the contents may be poured. This is accomplished as follows. In the rear wall 22 is provided two diagonal scores 53 and 53 which extend from the locality of the scores "and 18 up to the score I3 at a point in the middle of the flap 43. Connected with this score is another score 64 which extends directly across the flap 43 and tab 44. In the end section 21 are similarly formed diagonally arranged scores 55 and 56 which commence at the intersections of scores [3, l5 and I6 and terminate at the edges 46 and 41 of the access opening 45. Similar scores 66 are formed in the end wall sections 28 and 30 and also corresponding scores ,61 are formed in the end wall section 29, all of which register with the scores 65 when the end wall sections are folded into overlying position. By means of these scores, folding of the rear wall 22 and the flap 43 intoV-shaped formation is greatly facilitated.

The advantages of my invention are manifest. The carton can be constructed to embody the invention without additional cost. By means of my invention the carton is .easily and quickly reclosed. By the use of the ledges provided, the tab is positively directed into the pocket for the reception of the same. Due to the resilience of the end wall sections forming the pocket the tab is firmly clamped therebetween and the closing flap held in closing position.

Changes in the specific form of my invention,

as herein disclosed, may be made within the scope of what is claimed without departing from the spirit of my invention.

Having described my invention, what I claim as new and desire to protect by Letters Patent is:

1. A carton constructed from sheet material and comprising lateral walls including a front wall, a rear wall and side walls, a bottom connected with said lateral walls, end wall sections issuing outwardly from the'ends of the lateral walls and being adapted to be folded over and secured together to form an end wall for the upper end of the carton, the uppermost section having a removable, flap hinged atone end to one of the lateral walls and terminating at its end opposite the hinge in' a tab, the underlying sections forming an access opening to the carton adapted to be covered by said flap, said opening falling short of the wall opposite to that to which said flap is hinged to leave marginal portions in the underlying flaps, said marginal portions forming a pocket therebetween for the reception of said tab, and a ledge issuing from and integral with the wall section forming'the innermost wall of the pocket and extending into the access opening, said ledge being coextensive with the length of said access opening and being adapted to engage said tab and to direct the same into said pocket.

2. A carton constructed from sheet material issuing outwardly from the ends of the lateral and comprising lateral walls including a front wall, a rear wall and side walls, a bottom connected with said lateral walls, end wall sections is suing outwardly from the ends of the lateral walls and being adapted to be folded over and secured together to form an end wall for the upper end of the carton, the end wall sections issuing from the side walls being disposed innermost, the. end wall section issuing from the rear wall being disposed outermost and the end Wall section issuing from the front wall being disposed therebetween, the outermost section having a removable flap formed thereinand terminating at its free end in a tab, the intermediate section having an access opening therein falling'short of the front wall to leave a marginal portion between said access opening and said front wall, said innermost sections being constructed to form an opening registering with the access opening in the intermediate section and having marginal portions underlying the marginal portion of the intermediate flap and forming a pocket therebetween for the reception of said tab, and ledges issuing from the ends of the innermost flaps and extending into said access opening, said ledges lying in continuation of said underlying marginal portions and being adapted to engage the tab and to direct the same into the pocket.

3. A carton constructed from sheet material and comprising lateral walls including a front wall, a rear wall and side walls, a bottom connected with said lateral walls, end wall sections issuing outwardly from the ends of the lateral walls and being'adapted to be folded over and secured together to form an end wall for the upper end of the carton, the end wall sections issuing from the side walls being disposed innermost and the ends of the same falling short of one another to form an opening therebetween, the end wall section issuing from the rear wall being disposed outermost and the end wall section issuing from the front wall being disposed therebetween, the outermost section having a removable flap formed therein and terminating-at its free end in a tab,'the intermediate section having an access opening therein falling short of the front wall to leave a marginal portion adjacent the front wall, and overlying the portions of said side wall sections adjacent thefront wall to form a pocket therebetween, the ends of said side wall sections projecting inwardly of said access opening to form ledges extending to said access opening and marginal portions forming, in part, said pockets, said ledges being adapted to engage the tab and to direct the same into the pocket.

4. A carton constructed from sheet material and comprisinglateral walls including a front wall, a rear wall and side walls, a bottom connected with said lateral walls, end wall sections Walls and being adapted to be folded'over and secured together'to form an end wall for the upper end of the carton, the end wall sections issuing from the side walls being disposed innermost and the ends thereof falling short of one another to form an opening therebetween, the end wall section issuing from the front wall being disposed in overlying position with reference to the side wall sections and being formed with an access opening having edges parallel with the ends of said side wall sections and spaced apart a greater distance than the ends of said side wall sections to expose ledges on said side wall sections extending to said access opening, said access opening being further bounded by an edge extending transversely of the ends of said side wall sections and spaced from the front wall to provide a marginal portion on the front wall section overlying portions of the side wall sections adjacent the front wall to form a pocket therebetween, the end wall section issuing from the rear wall being disposed outermost and overlying the front wall section, the outermost section having a removable flap formed therein and adapted to cover the access opening, said flap terminating in a tab adapted to be engaged by said ledges to be directed into said pocket thereby.

5. A carton constructed from sheet material and comprising lateral walls including a front wall, a rear wall and side walls, a bottom connected with said lateral walls, end wall sections issuing outwardly from the ends of the lateral walls and being adapted to be folded over and secured together to form an end wall for the upper end of the carton, the end wall sections issuing from the side walls, being disposed innermost and the ends thereof falling short of one another to form an opening therebetween, the end wall section issuing from the front wall being disposed in overlying position with reference to the side wall sections and being formed with an access opening, said opening falling short of the front wall to leave a marginal portion in said front wall section, said opening being further constructed to expose portions of the ends of said side wall sections to provide ledges therein in proximity to said marginal portion of the front wall section, said marginal portion of the'front wall section overlying portions of the side wall sections and forming a pocket therebetween, the end wall section issuing from the rear wall being disposed outermost and overlying the front wall section, the outermost section having a removable flap formed therein and adapted to cover the access opening, said flap terminating in a tab adapted to be engaged by said ledges and to be directed into said pocket thereby.

ALEXANDER S. T. LAGAARD. 

